[box-tests] Added a reproducer for KT-56965

compiler/testData/codegen/boxInline/capture/kt56965.kt

@@ -0,0 +1,15 @@
+// NO_CHECK_LAMBDA_INLINING
+// IGNORE_BACKEND: JVM
+// IGNORE_BACKEND_MULTI_MODULE: JVM, JVM_MULTI_MODULE_OLD_AGAINST_IR
+// FILE: 1.kt
+inline fun foo(block: () -> String) = block()
+
+// FILE: 2.kt
+fun box() = foo {
+    val s = "O"
+    val obj = object {
+        fun local() = localInline { it }
+        inline fun localInline(block: (String) -> String) = block(s) + "K"
+    }
+    return obj.local()
+}